Unless LR make the long-awaited Defender a true Land Rover, with the "right" look & serious offroad
credentials, the D4's will be much loved for years to come. Probably not "collectable" in value terms, but as a serious offroader with looks to match. Here in Australia it's now possible to buy virtually anything you'd need for a D4 to travel our seriously tough terrain - Rear wheel carriers, Aux. tanks, bullbars, sliders
& with Compomotive 18" wheels you can fit the best A/T rubber. It doesn't seem that'll be the case with the current (ugly as sin) vehicle as it simply doesn't look "right" . No bullbars, carriers, tanks etc are available for the current model.
It's obvious that Toyota with the Landcruiser & Prado & Mercedes with the G-Wagon understand just what their customers want. LR just doesn't get it!!. The look-alike Evoque, Velar, RR Sport, Discovery, prove that LR are now in the fashion business & don't care about us guys who grew up loving serious Land Rovers for what they can do.
As the D4's appear more often in used car lots, more offroaders are going to use them for their intended purpose. The soccer mums can have the current disco for themselves!!